Newly released CCTV footage shows the moment Amir Khan was robbed of up to £70,000 by a gunman.br br The former world boxing champion was forced to hand over his bespoke, rose gold, diamond-encrusted Franck Muller watch.br br The watch, which was gifted to him following a boxing match, was valued to have been worth between £60,000 and £70,000.br br Snaresbrook Crown Court heard Dante Campbell, 20, pleaded guilty to the associated charges.